In a world where client communication is everything, being reachable isn’t optional—it’s essential. Businesses spend thousands perfecting their service offerings, marketing strategies, and customer support workflows, only for it all to fall apart the moment a call can’t get through.
And unfortunately, that can happen—even to the best providers.
Just recently, we witnessed two separate outages from one of our trusted upstream voice providers. Clients who had only one number (linked to that provider) were temporarily unreachable. Their internet worked. Their Cloud PBX worked. But their phones didn’t ring—and that’s all it takes to lose business.
This brings us to a critical but often misunderstood concept:
What does true voice redundancy actually mean?
The Misconception: “I have a Cloud PBX, I’m covered.”
Our Cloud PBX platform at ArcTech is built with redundancy baked in—from failover call routing to data centre resilience. But redundancy at the PBX level doesn’t protect you from upstream VoIP provider failure. If your geographic number (DID) is hosted with a provider that experiences an outage, inbound calls to that number simply won’t connect—regardless of how bulletproof your PBX is.
The Solution: Redundancy at the Carrier Level
True voice redundancy means having two separate inbound numbers, each with a distinct upstream provider—and both configured on your ArcTech Cloud PBX. If one provider experiences downtime, the other picks up the slack. Calls still reach your team. You can still make outbound calls. Business continues as usual.
How ArcTech Makes It Easy
You don’t need to manage two providers, juggle two platforms, or deal with multiple invoices. With ArcTech, everything stays under one roof:
✅ Your Cloud PBX remains on our infrastructure
✅ We provision two DIDs (geographic numbers), each from a different upstream carrier
✅ We configure both numbers within your PBX call flow
✅ You advertise both numbers (or one as your main, one as a backup)
✅ You receive a single bill and support team—us
We monitor both routes, manage routing failovers, and support you if anything ever goes wrong. This means you get the benefit of two voice providers, with the simplicity of just dealing with one partner.
Why This Matters—Especially in South Africa
We know the telecom landscape here: load shedding, infrastructure theft, cable damage, upstream routing issues… They’re unpredictable and unavoidable. And no matter how good your provider is (and we work with the best), downtime happens.
The only real way to ensure your business remains contactable is by building carrier-level redundancy into your voice setup.
We’ve seen this work brilliantly. During recent outages, clients with a backup number through a second provider (both managed by ArcTech) experienced no downtime at all. Their clients could still reach them. Their businesses stayed open.
One Partner. Two Providers. Zero Downtime.
If you’re relying on a single VoIP number for business continuity, now’s the time to re-evaluate. With ArcTech’s dual-provider voice solution, you don’t need to compromise between simplicity and resilience—you can have both.
Let’s make sure your business is always reachable.
Chat to us today about setting up true voice redundancy.
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